github.com/deemoprobe/k8s-first-commit@v0.0.0-20230430165612-a541f1982be3/cmd/apiserver/apiserver.go (about) 1 /* 2 Copyright 2014 Google Inc. All rights reserved. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 // apiserver is the main api server and master for the cluster. 17 // it is responsible for serving the cluster management API. 18 package main 19 20 import ( 21 "flag" 22 "fmt" 23 "log" 24 "net/http" 25 "time" 26 27 "github.com/coreos/go-etcd/etcd" 28 29 "github.com/GoogleCloudPlatform/kubernetes/pkg/apiserver" 30 kube_client "github.com/GoogleCloudPlatform/kubernetes/pkg/client" 31 "github.com/GoogleCloudPlatform/kubernetes/pkg/registry" 32 "github.com/GoogleCloudPlatform/kubernetes/pkg/util" 33 ) 34 35 var ( 36 port = flag.Uint("port", 8080, "The port to listen on. Default 8080.") 37 address = flag.String("address", "127.0.0.1", "The address on the local server to listen to. Default 127.0.0.1") 38 apiPrefix = flag.String("api_prefix", "/api/v1beta1", "The prefix for API requests on the server. Default '/api/v1beta1'") 39 etcdServerList, machineList util.StringList 40 ) 41 42 func init() { 43 flag.Var(&etcdServerList, "etcd_servers", "Servers for the etcd (http://ip:port), comma separated") 44 flag.Var(&machineList, "machines", "List of machines to schedule onto, comma separated.") 45 } 46 47 func main() { 48 flag.Parse() 49 50 if len(machineList) == 0 { 51 log.Fatal("No machines specified!") 52 } 53 54 var ( 55 taskRegistry registry.TaskRegistry 56 controllerRegistry registry.ControllerRegistry 57 serviceRegistry registry.ServiceRegistry 58 ) 59 60 if len(etcdServerList) > 0 { 61 log.Printf("Creating etcd client pointing to %v", etcdServerList) 62 etcdClient := etcd.NewClient(etcdServerList) 63 taskRegistry = registry.MakeEtcdRegistry(etcdClient, machineList) 64 controllerRegistry = registry.MakeEtcdRegistry(etcdClient, machineList) 65 serviceRegistry = registry.MakeEtcdRegistry(etcdClient, machineList) 66 } else { 67 taskRegistry = registry.MakeMemoryRegistry() 68 controllerRegistry = registry.MakeMemoryRegistry() 69 serviceRegistry = registry.MakeMemoryRegistry() 70 } 71 72 containerInfo := &kube_client.HTTPContainerInfo{ 73 Client: http.DefaultClient, 74 Port: 10250, 75 } 76 77 storage := map[string]apiserver.RESTStorage{ 78 "tasks": registry.MakeTaskRegistryStorage(taskRegistry, containerInfo, registry.MakeFirstFitScheduler(machineList, taskRegistry)), 79 "replicationControllers": registry.MakeControllerRegistryStorage(controllerRegistry), 80 "services": registry.MakeServiceRegistryStorage(serviceRegistry), 81 } 82 83 endpoints := registry.MakeEndpointController(serviceRegistry, taskRegistry) 84 go util.Forever(func() { endpoints.SyncServiceEndpoints() }, time.Second*10) 85 86 s := &http.Server{ 87 Addr: fmt.Sprintf("%s:%d", *address, *port), 88 Handler: apiserver.New(storage, *apiPrefix), 89 ReadTimeout: 10 * time.Second, 90 WriteTimeout: 10 * time.Second, 91 MaxHeaderBytes: 1 << 20, 92 } 93 log.Fatal(s.ListenAndServe()) 94 }